The ___ is obtained when carbonization of coal is carried out at 500° to 700° C. Bituminous coal Hard coal Soft coal Pulverized coal TRUE ANSWER : ? YOUR ANSWER : ?
An adiabatic wall is one which Discourages thermal interaction Permits thermal interaction Encourages thermal interaction Prevents thermal interaction TRUE ANSWER : ? YOUR ANSWER : ?
If value of n is infinitely large in a polytropic process pVn = C, then the process is known as constant Volume Enthalpy Temperature Pressure TRUE ANSWER : ? YOUR ANSWER : ?
When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency 2 43835 Zero 43834 TRUE ANSWER : ? YOUR ANSWER : ?
The efficiency of the dual combustion cycle for the same compression ratio is __________ Diesel cycle. Greater than Equal to Less than None of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following processes is irreversible process? Isothermal All of these Adiabatic Throttling TRUE ANSWER : ? YOUR ANSWER : ?
Water contained in a beaker can be made to boil by passing steam through it At a pressure greater than atmospheric pressure Any pressure Not possible At atmospheric pressure TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following variables controls the physical properties of a perfect gas? Volume Temperature Pressure All of these TRUE ANSWER : ? YOUR ANSWER : ?
According to Gay Lussac’s law for a perfect gas, the absolute pressure of given mass varies directly as Volume, if temperature is kept constant Absolute temperature, if volume is kept constant Temperature None of these TRUE ANSWER : ? YOUR ANSWER : ?